What was found
ON FLIGHT 4580 THE CREW RECEIVED A FLAP FAIL MESSAGE. THE CREW DECLARED AN EMERGENCY AND LANDED WITH 0 FLAPS. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. TROUBLESHOT AND FOUND FLAP ELECTRONIC CONTROL UNIT FAIL, RIGHT SENSOR FAIL ON CENTRAL MAINTENANCE COMPUTER. PERFORMED FIM TASK 27-51-00-810-803-A REMOVED AND REPLACED THE FLAP ELECTRONIC CONTROL UNIT PER AMM 27-53-02. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.